Bug Report

Ionic version:
[x] 4.6

Current behavior:
When opening a page that is linked to a tab it isn't being selected.

Expected behavior:
When opening a page linked to a tab it should be selected (by default blue).

Steps to reproduce:
Start a new project: ionic start myApp tabs. Open tab1.page.html and remove the href's of the ion-item's. Open http://localhost:4200/tabs/tab1 (change the port accordingly) and the tab isn't selected (it was working before this change).

Another scenario, open tab2.page.html and add some component inside the <ion-content>, for example a <ion-spinner>. Open http://localhost:4200/tabs/tab2 and the tab isn't selected (it was working before this change).

Other information:
The two scenarios are really different, so I don't really know the cause of this bug.

Ionic info:

Ionic:

   Ionic CLI                     : 5.2.0 (/home/tanoabeleyra/.config/yarn/global/node_modules/ionic)
   Ionic Framework               : @ionic/angular 4.6.0
   @angular-devkit/build-angular : 0.13.9
   @angular-devkit/schematics    : 7.3.9
   @angular/cli                  : 7.3.9
   @ionic/angular-toolkit        : 1.5.1

Utility:

   cordova-res : not installed
   native-run  : not installed

System:

   NodeJS : v11.14.0 (/home/tanoabeleyra/.nvm/versions/node/v11.14.0/bin/node)
   npm    : 6.7.0
   OS     : Linux 4.19

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